The Flo-Eco™ high efficiency water heater is a compact, condensing, storage type water heater that delivers 95 percent efficiency in most operational modes. When equipped with the digital re-circulating valve (DRV), the Flo-Eco delivers precise temperature control for a variety of environments. The uni's replaceable “Tuff-Tank” liner is constructed of industrial material rated for continuous use at temperatures up to 185°F and is effective in protecting the underlying tank substrate so that sacrificial anodes rods are not required. The heaters carry a 10-year tank warranty and a five-year heat exchanger warranty. System connectivity via Armstrong’s BrainScan™, a digital hot water management system console optionally supplied with the Brain®, offers hot water monitoring and control linked with resident BAS (BacNet, LonWorks, ModBus), and can be Web enabled.